Jacquard embroidering-machine.



r R. ZAHN.

JACQUARD EMBEOIDBRING MACHINE.

APPLICATION FILED MAR. 18. 1-910.

995,395, P11911181 June 13, 1911 2 SEEETS-SHEET l.

E. ZAHN.

JAGQUARD EMBROIDEEING MACHINE. APPLICATION FILED MAR; 18, 1910.

2 SHEETS-SHBET 2.

FIE E Tacit-1157mm "it may concern.

no FE fa r ZAHN, o r r L n U E'iv, e ERMA N Y.

JACQUARCD 'E'IVIBROIDE'RING-MACHINE.

Speeific'ation'of Iietters'Patent. sp mm agu 13 9 Application filedMarch is, 1910. Serial No. 550,18:

Be it known that 1,;B0BERT ZAHN, a subject of the King of Bavaria, andresident of Plauen, Germany, have invented. new and useful Improvementsin Jacquard Embroidering-Ma'chines, of which the followingis a full,clear, and exact specification.

The present inventionrelates to improve-' ments. in jacquardembroidering machines, with scallop mechanism, speed change means andcord laying device, said improve ments consisting of an arrangementwhere in the cord. laying device is controlled by a needle 'of thejacquard mechanism and con trols' itself,-in' conjunction with the speedchange means, a throwing-in device of the scallop mechanism, so thatwhen the machine is set at slow speed the movement of the cord layingdevice also determines the throwing -intooperati0n of .the scallopmechanism. Owing to this connection -between the scallop mechanism andthe cord laying device,'the machine is simplified, as only one jacquardneedle is used for con trolling two functions. j

The accompanying diagrammatic drawings show one method of carrying outthe present invention. I t

Figure l is a general view of the arrangement, while Fig; .2 representsthe motive and jacquard controlled devices of the machine.

The main shaft 1 ofthe machine is driven at half the speed of thejacquard shaft 4 by means of a pair of toothed Wheels 2, 3, so-

that the shaft 1 revolves twice for every revolution of the shaft 4. Thetoothed wheel 3 is provided with a cam groove 5 which controls athree-armed driving lever 6 andofwhich during one revolution of theshaft 1 one of the two operative portions of the cam groove comes intoaction, while during the following revolution of this shaft-the oth roperative portion ofthe cam groove is brought into action.

A movable adjusting rod 7 controlled by a needle. of the jacquardmechanismJ (Fig.'

2) by means of a lever 33 and a lifte"; link 8 can be coupled to the arm10 of the' 'lever 6. This adjusting rod 7 actuates the cord layinglevers 9 which are arranged in pairs and are provided with cordpositioning fingers 11. A locking rod 12 connected to the cord laying.levers 9 passes through a guide 13 and terminates opposite an arm ofthe three-armed rocking lever 14 which is loose' on the shaft 1 and isdesignedto operate the throwing-into-operation of the scallop mechanism.The second arm of this lever carries a coupling wheel 15 which is inconstant engagement with the toothed wheel 2 and which can also bebrought'into engage ment with the driving wheel 160i the scallopmechanism when thelever 14 is rocked in one direction; normally,however, the

coupling wheel 15 is out of engagement with the wheel 16 and rotatesloose about its own axis.

The third arm of the rocking lever "14 is controlled by a stopping rod'17 which is connected at one end to the said arm-of the lever 14 bymeans of a tension spring18, and at the other end to a lever 19controlling the speed of the machine.

lever for an electromotor M (Fig. 2) drivy The speed controlling lever19 is arranged, as a switch ing the wheel 3 of the jacquard-embroider-'ing machine and which may be'switched on to either of twodilferentspeeds, the posi-- tion shown in the drawing (F)'-fast.'be'-ing for the. fast drive of the machine whereby a resistance R forexample is-cut off from:

The switch lethe electric supply circuit. ver 19 is connected to anadjusting rod, 20 which may be coupled to the'arm22 of the lever 6 bymeans of a lifter 21c0ntro lled through lever 30, rod =31 and lever-32from a needle of the jacquard mechanismJ (Fig.-

7 is coupled with the arm 10 of the lever 6" by means of the respectivejacquard needle.

The rod 7 is then thrust upward owingto the action of the one operativepart of the cam groove 5 and the rod by means of" the levers 9, bringsthe cord lying in the fingers 11, before the corresponding row ofembroidery needles. At the same time the locking rod 12 is raised sothat the throwing-into-operation lever 14 of the'scallop mechanism isreleased. The lifter 8 is now drawn back by means of the jacquard needleconnected to it, and thereby brings the adjusting rod 7 into engagementwith a fixed pin 27. After the cord ,is 'firmly embroidered -inposition, this .'jacquard needle again comes into action and operatesin'such a manner .that the levers and rods belonging to it, now underthe control of the other operative portion of the cam groove 5, arebrought back into their initial position. i

If it is desired to drive the parts of the machine positioned asshown'in the drawing,-at the slow speed, the cord laying device remainsat rest so that the rod 12 locks the lever 14 in its inoperativeposition. The adjusting rod 20 is then coupled to the arm 22 of thedrlving lever 6 by means of the jacquard needle connected to the lifter21. This results in that the rod 20 is pushed upward by virtue of thefirst operative portion of the cam groove 5 so that the switch lever 19is moved over to (S)slowand at the same time the stopping rod 17 ispushed to the right and the spring 18 con nected' with the locked lever14 is tensioned. Then, the rod 21 is pulled back by means of thejacquard needle connected to it,- so that the adjusting rod 20 iscoupled to a fixed pin 29. In order to again setthe machine at the fastspeed, this jacquard needle is again brought into operation. The leversand rods which are now controlled by the second operative portion of thecam groove 5 aretherefore then brought back into their initial position.As may be seen, the machine may also be set at the slow speed withouttermines thethrowing-into-operatlon of zthe scallop mechanism.

operating the thtowing-into-operation lever 14 of the scallop mechanism.

If scalloping is .required to be done, the machine must be previouslyset to run at the slow speed. The rod 17 as mentioned above, will thenbe pushed over to the right and the spring 18 thereby tensioned. The

scribed, without however having a cord suspended in the fingers 11.

, locking rod 12 is brought out of engagement with the corresponding armof the rocking lever 14. The tension spring 18 will thusturn the lever14 to such an extent that the coupling wheel 15 engageswith the drivingwheel 16 of the scallop mechanism. The

scallop mechanism 24, 25, 26 is thereby set into operation. When thescallop stitches have been made, the cord laying device will be broughtback in the manner above set forth, and the rod 12 connected theretoacts on the lever 14in such a manner that the coupling wheel 15 will bedisengaged from the wheel 16 and the scallop mechanism will Owing to'the movement of the cord laying device, the

ving-into-o eration device and interconnecting means between saidthroWing-into-operation device and the cord laying device,

both said interconnecting means being so arrangedthat when the machineis set at slow speed the movement of the cord laying devicev alsodetermines the throWing-into-op-v eration of the scallop mechanism.

2. In jacquard embroider-ing machines,

the combination of a needle mechanism, a

jacquard mechanism, a scallop mechanism, a device for thethrowing-into-operation of said scallop mechanism, means for changingthe speed of the machine under the control of the jacquard mechanism, acord laying ,device, meansifor actuating said cord laying device underthe control of the jacquard mechanism, combined interconnecting elasticmeans between said speed changing means and said throwing-into-operationde- .-vice and interlocking means'between said throwing-into operationdevice and'the cord laying device, said interconnecting and interlockingmeans being so arranged that when the machine is set .at slow' speed themovement of the cord laying device also de a movable lever. forthethrowing-into op eration of said scallop mechanism," means forchanging the'speed of the machine'underv the control of the jacquardmechanism, a

cord laying device, means for actuating said cord laying device under:the controlof the jacquard mechanism, a opping. member for saidthrowing-into-operatlon lever, connect-.

ed with the speedchanging means, a spring connection between saidstopping member and said throwing-into-operation lever and.

an interlocking member connected to the cord laying device andarrangedto normally 1001: said throwing-into-operation lever in itsinoperative position, but to unlock it when the cord laying device isactuated,

for the purposes set.forth.-

4. In jacquard embroidering machines,

the combination of a needle mechanism, a

jacquard mechanism, a scallop mechanism, a device for thethrowing-into-operatlon of said scallop mechanism, means for changingthe speed of the machine, a cord laying de-.

vice, means for actuating said-cord laying device under the control ofthe jacquard mechanism, interlocking means between the cord laying.device and said throwing-into- In witnesswhereof have hereunto signed0pemt1on devlce and an elastlc connectwn my name thls 21st day ofFebruary 1910, 111 between the speed changlng means and Saul thepresence of two subscnbmg wltnesses.

throwing-into-operation device, whereby the ROBERT ZAHN. machine maybeset at slow speed Without i Witnesses: operating thethrowing-into-operation de- ROBERT H. NIER,

vice for the scallop mechanism. RICHARD B. VVASHINGTQN.

